Amazon India — non receipt of airtel voucher & 10% buy back amount

Address:

Jaipur, Rajasthan

sir, i have purchased one micromax canvas1 mobile from amazon. in under the package of 10% buy back amount on purchase by sbi debit card & free airtel data on useing airtel sim . i have complied with both the conditions.but till now i have not received both the benifits.they have not send me airtel voucher with the mobile so i am unable in taking airtel benifits.pl. do needful and resolve my problem.thanks.kishansingh.